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Chen J, Sun T, You Y, Lin B, Wu B, Wu J. Genome-wide identification of potential odontogenic genes involved in the dental epithelium-mesenchymal interaction during early odontogenesis. BMC Genomics 2023; 24:163. [PMID: 37013486 PMCID: PMC10069120 DOI: 10.1186/s12864-023-09140-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 01/16/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Epithelium-mesenchymal interactions are involved in odontogenic processes. Previous studies have focused on the intracellular signalling regulatory network in tooth development, but the functions of extracellular regulatory molecules have remained unclear. This study aims to explore the gene profile of extracellular proteoglycans and their glycosaminoglycan chains potentially involved in dental epithelium-mesenchymal interactions using high-throughput sequencing to provide new understanding of early odontogenesis. RESULTS Whole transcriptome profiles of the mouse dental epithelium and mesenchyme were investigated by RNA sequencing (RNA-seq). A total of 1,281 and 1,582 differentially expressed genes were identified between the dental epithelium and mesenchyme at E11.5 and E13.5, respectively. Enrichment analysis showed that extracellular regions and ECM-receptor interactions were significantly enriched at both E11.5 and E13.5. Polymerase chain reaction analysis confirmed that the extracellular proteoglycan family exhibited distinct changes during epithelium-mesenchymal interactions. Most proteoglycans showed higher transcript levels in the dental mesenchyme, whereas only a few were upregulated in the epithelium at both stages. In addition, 9 proteoglycans showed dynamic expression changes between these two tissue compartments. Gpc4, Sdc2, Spock2, Dcn and Lum were expressed at higher levels in the dental epithelium at E11.5, whereas their expression was significantly higher in the dental mesenchyme at E13.5, which coincides with the odontogenic potential shift. Moreover, the glycosaminoglycan biosynthetic enzymes Ext1, Hs3st1/5, Hs6st2/3, Ndst3 and Sulf1 also exhibited early upregulation in the epithelium but showed markedly higher expression in the mesenchyme after the odontogenic potential shift. CONCLUSION This study reveals the dynamic expression profile of extracellular proteoglycans and their biosynthetic enzymes during the dental epithelium-mesenchymal interaction. This study offers new insight into the roles of extracellular proteoglycans and their distinct sulfation underlying early odontogenesis.
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Affiliation(s)
- Jiawen Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- School of Stomatology, Southern Medical University, Guangzhou, 510515, China
| | - Tianyu Sun
- Department of Periodontology, Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Yan You
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- School of Stomatology, Southern Medical University, Guangzhou, 510515, China
| | - Binbin Lin
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- School of Stomatology, Southern Medical University, Guangzhou, 510515, China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
- School of Stomatology, Southern Medical University, Guangzhou, 510515, China.
- Southern Medical University- Shenzhen Stomatology Hospital (Pingshan), ShenZhen, 518118, China.
| | - Jingyi Wu
- Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China.
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2
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Woodruff ED, Kircher BK, Armfield BA, Levy JK, Bloch JI, Cohn MJ. Domestic cat embryos reveal unique transcriptomes of developing incisor, canine, and premolar teeth. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART B, MOLECULAR AND DEVELOPMENTAL EVOLUTION 2022; 338:516-531. [PMID: 35816012 DOI: 10.1002/jez.b.23168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 04/26/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Division of the dentition into morphologically distinct classes of teeth (incisors, canines, premolars, and molars) and the acquisition of tribosphenic molars facilitated precise occlusion between the teeth early in mammal evolution. Despite the evolutionary and ecological importance of distinct classes of teeth with unique cusp, crest, and basin morphologies, relatively little is known about the genetic basis for the development of different tooth classes within the embryo. Here we investigated genetic differences between developing deciduous incisor, canine, and premolar teeth in the domestic cat (Felis catus), which we propose to be a new model for tooth development. We examined differences in both developmental timing and crown morphology between the three tooth classes. Using RNA sequencing of early bell stage tooth germs, we showed that each of the three deciduous tooth classes possess a unique transcriptional profile. Three notable groups of genes emerged from our differential expression analysis; genes involved in the extracellular matrix (ECM), Wnt pathway signaling, and members of multiple homeobox gene families (Lhx, Dlx, Alx, and Nkx). Our results suggest that ECM genes may play a previously under-appreciated role in shaping the surface of the tooth crown during development. Differential regulation of these genes likely underlies differences in tooth crown shape and size, although subtle temporal differences in development between the tooth germs could also be responsible. This study provides foundational data for future experiments to examine the function of these candidate genes in tooth development to directly test their potential effects on crown morphology.
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Affiliation(s)
- Emily D Woodruff
- Department of Biology, University of Florida, Gainesville, Florida, USA
- Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Bonnie K Kircher
- Department of Biology, University of Florida, Gainesville, Florida, USA
| | - Brooke A Armfield
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, USA
| | - Julie K Levy
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
| | - Jonathan I Bloch
- Department of Biology, University of Florida, Gainesville, Florida, USA
- Department of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Martin J Cohn
- Department of Biology, University of Florida, Gainesville, Florida, USA
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, USA
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3
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Wang X, Chiba Y, Jia L, Yoshizaki K, Saito K, Yamada A, Qin M, Fukumoto S. Expression Patterns of Claudin Family Members During Tooth Development and the Role of Claudin-10 ( Cldn10) in Cytodifferentiation of Stratum Intermedium. Front Cell Dev Biol 2020; 8:595593. [PMID: 33195274 PMCID: PMC7642450 DOI: 10.3389/fcell.2020.595593] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/07/2020] [Indexed: 02/05/2023] Open
Abstract
There is growing evidence showing that tight junctions play an important role in developing enamel. Claudins are one of the main components of tight junctions and may have pivotal functions in modulating various cellular events, such as regulating cell differentiation and proliferation. Mutations in CLDN10 of humans are associated with HELIX syndrome and cause enamel defects. However, current knowledge regarding the expression patterns of claudins and the function of Cldn10 during tooth development remains fragmented. In this study, we aimed to analyze the expression patterns of claudin family members during tooth development and to investigate the role of Cldn10 in amelogenesis. Using cap analysis gene expression of developing mouse tooth germs compared with that of the whole body, we found that Cldn1 and Cldn10 were highly expressed in the tooth. Furthermore, single-cell RNA-sequence analysis using 7-day postnatal Krt14-RFP mouse incisors revealed Cldn1 and Cldn10 exhibited distinct expression patterns. Cldn10 has two isoforms, Cldn10a and Cldn10b, but only Cldn10b was expressed in the tooth. Immunostaining of developing tooth germs revealed claudin-10 was highly expressed in the inner enamel epithelium and stratum intermedium. We also found that overexpression of Cldn10 in the dental epithelial cell line, SF2, induced alkaline phosphatase (Alpl) expression, a marker of maturated stratum intermedium. Our findings suggest that Cldn10 may be a novel stratum intermedium marker and might play a role in cytodifferentiation of stratum intermedium.
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Affiliation(s)
- Xin Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.,Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yuta Chiba
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Lingling Jia
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Keigo Yoshizaki
- Section of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Kan Saito
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Aya Yamada
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Man Qin
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Satoshi Fukumoto
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan.,Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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4
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Kim E, Jung S, Wu Z, Zhang S, Jung H. Sox2 maintains epithelial cell proliferation in the successional dental lamina. Cell Prolif 2020; 53:e12729. [PMID: 31746095 PMCID: PMC6985665 DOI: 10.1111/cpr.12729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/10/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES The successional dental lamina is the distinctive structure on the lingual side of the vertebrate tooth germ. The aim of this study was to investigate the relationship among Sox2, Claudin10 and laminin5 and the role of Sox2 in successional dental lamina proliferation during vertebrate tooth development. MATERIALS AND METHODS To understand the successional dental lamina, two types of successional tooth formation, that in geckos (with multiple rounds of tooth generation) and that in mice (with only one round of tooth generation), were analysed. RESULTS Unique coexpression patterns of Sox2 and Claudin10 expression were compared in the successional dental lamina from the cap stage to the late bell stage in the mouse tooth germ and in juvenile gecko teeth to support continuous tooth replacement. Furthermore, Laminin5 expression was shown in the cap stage and decreased after the bell stage. Upon comparing the epithelial cell cycles and cell proliferation in successional dental lamina regions between mouse and gecko molars using BrdU and IdU staining and pulse-chase methods, distinctive patterns of continuous expression were revealed. Moreover, Sox2 overexpression with a lentiviral system resulted in hyperplastic dental epithelium in mouse molars. CONCLUSIONS Our findings indicate that the regulation of Sox2 in dental lamina proliferation is fundamental to the successional dental lamina in both species.
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Affiliation(s)
- Eun‐Jung Kim
- Division in Anatomy and Developmental BiologyDepartment of Oral BiologyResearch Center for Orofacial Hard Tissue RegenerationBrain Korea 21 PLUS ProjectOral Science Research CenterCollege of DentistryYonsei UniversitySeoulKorea
| | - Seo‐Yoon Jung
- Division in Anatomy and Developmental BiologyDepartment of Oral BiologyResearch Center for Orofacial Hard Tissue RegenerationBrain Korea 21 PLUS ProjectOral Science Research CenterCollege of DentistryYonsei UniversitySeoulKorea
| | - Zhaoming Wu
- Division in Anatomy and Developmental BiologyDepartment of Oral BiologyResearch Center for Orofacial Hard Tissue RegenerationBrain Korea 21 PLUS ProjectOral Science Research CenterCollege of DentistryYonsei UniversitySeoulKorea
| | - Sushan Zhang
- Division in Anatomy and Developmental BiologyDepartment of Oral BiologyResearch Center for Orofacial Hard Tissue RegenerationBrain Korea 21 PLUS ProjectOral Science Research CenterCollege of DentistryYonsei UniversitySeoulKorea
| | - Han‐Sung Jung
- Division in Anatomy and Developmental BiologyDepartment of Oral BiologyResearch Center for Orofacial Hard Tissue RegenerationBrain Korea 21 PLUS ProjectOral Science Research CenterCollege of DentistryYonsei UniversitySeoulKorea
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5
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Orlova E, Carlson JC, Lee MK, Feingold E, McNeil DW, Crout RJ, Weyant RJ, Marazita ML, Shaffer JR. Pilot GWAS of caries in African-Americans shows genetic heterogeneity. BMC Oral Health 2019; 19:215. [PMID: 31533690 PMCID: PMC6751797 DOI: 10.1186/s12903-019-0904-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 08/30/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Dental caries is the most common chronic disease in the US and disproportionately affects racial/ethnic minorities. Caries is heritable, and though genetic heterogeneity exists between ancestries for a substantial portion of loci associated with complex disease, a genome-wide association study (GWAS) of caries specifically in African Americans has not been performed previously. METHODS We performed exploratory GWAS of dental caries in 109 African American adults (age > 18) and 96 children (age 3-12) from the Center for Oral Health Research in Appalachia (COHRA1 cohort). Caries phenotypes (DMFS, DMFT, dft, and dfs indices) assessed by dental exams were tested for association with 5 million genotyped or imputed single nucleotide polymorphisms (SNPs), separately in the two age groups. The GWAS was performed using linear regression with adjustment for age, sex, and two principal components of ancestry. A maximum of 1 million adaptive permutations were run to determine empirical significance. RESULTS No loci met the threshold for genome-wide significance, though some of the strongest signals were near genes previously implicated in caries such as antimicrobial peptide DEFB1 (rs2515501; p = 4.54 × 10- 6) and TUFT1 (rs11805632; p = 5.15 × 10- 6). Effect estimates of lead SNPs at suggestive loci were compared between African Americans and Caucasians (adults N = 918; children N = 983). Significant (p < 5 × 10- 8) genetic heterogeneity for caries risk was found between racial groups for 50% of the suggestive loci in children, and 12-18% of the suggestive loci in adults. CONCLUSIONS The genetic heterogeneity results suggest that there may be differences in the contributions of genetic variants to caries across racial groups, and highlight the critical need for the inclusion of minorities in subsequent and larger genetic studies of caries in order to meet the goals of precision medicine and to reduce oral health disparities.
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Affiliation(s)
- E Orlova
- Department of Human Genetics, Pittsburgh, USA
| | - J C Carlson
- Department of Biostatistics, Graduate School of Public Health, Pittsburgh, USA
| | - M K Lee
- Center for Craniofacial and Dental Genetics, Dept. of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - E Feingold
- Department of Human Genetics, Pittsburgh, USA
- Department of Biostatistics, Graduate School of Public Health, Pittsburgh, USA
- Center for Craniofacial and Dental Genetics, Dept. of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - D W McNeil
- Departments of Psychology, & Dental Practice and Rural Health, West Virginia University, Morgantown, USA
| | - R J Crout
- Department of Periodontics, School of Dentistry, West Virginia University, Morgantown, WV, USA
| | - R J Weyant
- Department of Dental Public Health and Information Management, Pittsburgh, USA
| | - M L Marazita
- Department of Human Genetics, Pittsburgh, USA
- Center for Craniofacial and Dental Genetics, Dept. of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Clinical and Translational Sciences Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - J R Shaffer
- Department of Human Genetics, Pittsburgh, USA.
- Center for Craniofacial and Dental Genetics, Dept. of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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6
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Samiei M, Ahmadian E, Eftekhari A, Eghbal MA, Rezaie F, Vinken M. Cell junctions and oral health. EXCLI JOURNAL 2019; 18:317-330. [PMID: 31338005 PMCID: PMC6635732 DOI: 10.17179/excli2019-1370] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/04/2019] [Indexed: 12/21/2022]
Abstract
The oral cavity and its appendices are exposed to considerable environmental and mechanical stress. Cell junctions play a pivotal role in this context. Among those, gap junctions permit the exchange of compounds between cells, thereby controlling processes such as cell growth and differentiation. Tight junctions restrict paracellular transportation and inhibit movement of integral membrane proteins between the different plasma membrane poles. Adherens junctions attach cells one to another and provide a solid backbone for resisting to mechanistical stress. The integrity of oral mucosa, normal tooth development and saliva secretion depend on the proper function of all these types of cell junctions. Furthermore, deregulation of junctional proteins and/or mutations in their genes can alter tissue functioning and may result in various human disorders, including dental and periodontal problems, salivary gland malfunction, hereditary and infectious diseases as well as tumorigenesis. The present manuscript reviews the role of cell junctions in the (patho)physiology of the oral cavity and its appendices, including salivary glands.
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Affiliation(s)
- Mohammad Samiei
- Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Ahmadian
- Dental and Periodontal Research center, Tabriz University of Medical Sciences, Tabriz, Iran.,Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aziz Eftekhari
- Pharmacology and Toxicology department, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Mohammad Ali Eghbal
- Drug Applied Research Center and Pharmacology and Toxicology department, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fereshte Rezaie
- General Practitioner, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mathieu Vinken
- Department of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Brussels, Belgium
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7
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Rostampour N, Appelt CM, Abid A, Boughner JC. Expression of new genes in vertebrate tooth development and p63 signaling. Dev Dyn 2019; 248:744-755. [PMID: 30875130 DOI: 10.1002/dvdy.26] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/15/2019] [Accepted: 03/11/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND p63 is an evolutionarily ancient transcription factor essential to vertebrate tooth development. Our recent gene expression screen comparing wild-type and "toothless" p63-/- mouse embryos implicated in tooth development several new genes that we hypothesized act downstream of p63 in dental epithelium, where p63 is also expressed. RESULTS Via in situ hybridization and immunohistochemistry, we probed mouse embryos (embryonic days 10.5-14.5) and spotted gar fish embryos (14 days postfertilization) for these newly linked genes, Cbln1, Cldn23, Fermt1, Krt15, Pltp and Prss8, which were expressed in mouse and gar dental epithelium. Loss of p63 altered expression levels but not domains. Expression was comparable between murine upper and lower tooth organs, implying conserved gene functions in maxillary and mandibular dentitions. Our meta-analysis of gene expression databases supported that these genes act within a p63-driven gene regulatory network important to tooth development in mammals and more evolutionary ancient vertebrates (fish, amphibians). CONCLUSIONS Cbln1, Cldn23, Fermt1, Krt15, Pltp, and Prss8 were expressed in mouse and fish dental epithelium at placode, bud, and/or cap stages. We theorize that these genes participate in cell-cell adhesion, cell polarity, and extracellular matrix signaling to support dental epithelium integrity, folding, and epithelial-mesenchymal cross talk during tooth development.
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Affiliation(s)
- Nasim Rostampour
- Department of Anatomy & Cell Biology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Cassy M Appelt
- Department of Anatomy & Cell Biology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Aunum Abid
- Department of Anatomy & Cell Biology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Julia C Boughner
- Department of Anatomy & Cell Biology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
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8
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Nakamura S, Irie K, Tanaka H, Nishikawa K, Suzuki H, Saitoh Y, Tamura A, Tsukita S, Fujiyoshi Y. Morphologic determinant of tight junctions revealed by claudin-3 structures. Nat Commun 2019; 10:816. [PMID: 30778075 PMCID: PMC6379431 DOI: 10.1038/s41467-019-08760-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 01/28/2019] [Indexed: 01/07/2023] Open
Abstract
Tight junction is a cell adhesion apparatus functioning as barrier and/or channel in the paracellular spaces of epithelia. Claudin is the major component of tight junction and polymerizes to form tight junction strands with various morphologies that may correlate with their functions. Here we present the crystal structure of mammalian claudin-3 at 3.6 Å resolution. The third transmembrane helix of claudin-3 is clearly bent compared with that of other subtypes. Structural analysis of additional two mutants with a single mutation representing other subtypes in the third helix indicates that this helix takes a bent or straight structure depending on the residue. The presence or absence of the helix bending changes the positions of residues related to claudin-claudin interactions and affects the morphology and adhesiveness of the tight junction strands. These results evoke a model for tight junction strand formation with different morphologies – straight or curvy strands – observed in native epithelia. The main components of tight junctions (TJ) are claudins that polymerize and form meshwork architectures called TJ strands. Here the authors present the 3.6 Å crystal structure of murine claudin-3 and show that residue P134 causes a bending of the third transmembrane helix which affects the morphology and adhesiveness of the TJ strands.
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Affiliation(s)
- Shun Nakamura
- Cellular and Structural Physiology Institute, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan
| | - Katsumasa Irie
- Cellular and Structural Physiology Institute, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan.,Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan
| | - Hiroo Tanaka
- Laboratory of Biological Science, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Kouki Nishikawa
- Cellular and Structural Physiology Institute, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan
| | - Hiroshi Suzuki
- Cellular and Structural Physiology Institute, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan.,Laboratory of Molecular Electron Microscopy, The Rockefeller University, New York, 10065, USA
| | - Yasunori Saitoh
- Cellular and Structural Physiology Institute, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan.,Research Institute for Interdisciplinary Science, Okayama University, Tsushima Naka 3-1-1, Kita, Okayama, 700-8530, Japan
| | - Atsushi Tamura
- Laboratory of Biological Science, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Sachiko Tsukita
- Laboratory of Biological Science, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yoshinori Fujiyoshi
- Cellular and Structural Physiology Institute, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8601, Japan. .,CeSPIA Inc., 2-1-1 Otemachi, Chiyoda, Tokyo, 100-0004, Japan.
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9
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Naveau A, Zhang B, Meng B, Sutherland MT, Prochazkova M, Wen T, Marangoni P, Jones KB, Cox TC, Ganss B, Jheon AH, Klein OD. Isl1 Controls Patterning and Mineralization of Enamel in the Continuously Renewing Mouse Incisor. J Bone Miner Res 2017; 32:2219-2231. [PMID: 28650075 PMCID: PMC5685895 DOI: 10.1002/jbmr.3202] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 06/09/2017] [Accepted: 06/21/2017] [Indexed: 01/15/2023]
Abstract
Rodents are characterized by continuously renewing incisors whose growth is fueled by epithelial and mesenchymal stem cells housed in the proximal compartments of the tooth. The epithelial stem cells reside in structures known as the labial (toward the lip) and lingual (toward the tongue) cervical loops (laCL and liCL, respectively). An important feature of the rodent incisor is that enamel, the outer, highly mineralized layer, is asymmetrically distributed, because it is normally generated by the laCL but not the liCL. Here, we show that epithelial-specific deletion of the transcription factor Islet1 (Isl1) is sufficient to drive formation of ectopic enamel by the liCL stem cells, and also that it leads to production of altered enamel on the labial surface. Molecular analyses of developing and adult incisors revealed that epithelial deletion of Isl1 affected multiple, major pathways: Bmp (bone morphogenetic protein), Hh (hedgehog), Fgf (fibroblast growth factor), and Notch signaling were upregulated and associated with liCL-generated ectopic enamel; on the labial side, upregulation of Bmp and Fgf signaling, and downregulation of Shh were associated with premature enamel formation. Transcriptome profiling studies identified a suite of differentially regulated genes in developing Isl1 mutant incisors. Our studies demonstrate that ISL1 plays a central role in proper patterning of stem cell-derived enamel in the incisor and indicate that this factor is an important upstream regulator of signaling pathways during tooth development and renewal. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Adrien Naveau
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
- Université Paris Descartes, Sorbonne Paris Cite, UMR S872, France
- Centre de Recherche des Cordeliers, Université Pierre et Marie Curie, UMR S872, Paris, France
- INSERM U872, Paris, France
| | - Bin Zhang
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Bo Meng
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - McGarrett T. Sutherland
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Michaela Prochazkova
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
- Laboratory of Transgenic Models of Diseases, Institute of Molecular Genetics of the ASCR, v.v.i., Prague 4 14220, Czech Republic
| | - Timothy Wen
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Pauline Marangoni
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Kyle B. Jones
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Timothy C. Cox
- Department of Pediatrics (Craniofacial Medicine), University of Washington & Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Bernhard Ganss
- Faculty of Dentistry, University of Toronto, Toronto, ON Canada
| | - Andrew H. Jheon
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Ophir D. Klein
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
- Department of Pediatrics and Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
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10
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Lin D, Guo Y, Li Y, Ruan Y, Zhang M, Jin X, Yang M, Lu Y, Song P, Zhao S, Dong B, Xie Y, Dang Q, Quan C. Bioinformatic analysis reveals potential properties of human Claudin-6 regulation and functions. Oncol Rep 2017; 38:875-885. [PMID: 28656265 PMCID: PMC5561977 DOI: 10.3892/or.2017.5756] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 05/31/2017] [Indexed: 12/11/2022] Open
Abstract
Claudin-6 (CLDN6) is an integral component of the tight junction proteins in polarized epithelial and endothelial cells and plays a crucial role in maintaining cell integrity. Deregulation of CLDN6 expression and distribution in tumor tissues have been widely documented and correlated with cancer progression and metastasis. However, a complete mechanistic understanding of CLDN6 regulation and function remains to be studied. Herein, we show new potential properties of CLDN6 regulation and functions from bioinformatics analysis. Using numerous algorithms to characterize the CLDN6 gene promoter elements and the CLDN6 protein structure, physio-chemical and localization properties, and its evolutionary relationships. CLDN6 is regulated by a diverse set of transcription factors (SP1, SPR, AML-1a, CdxA, CRE-BP and CREB) and associated with the levels of methylation of CpG islands in promoters. The structural properties of CLDN6 indicate that it promotes cancer cell behavior via the ASK1-p38/JNK MAPK secretory signaling pathway. In conclusion, this information from bioinformatics analysis will help future attempts to better understand CLDN6 regulation and functions.
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Affiliation(s)
- Dongjing Lin
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Yaxiong Guo
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Yanru Li
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Yang Ruan
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Mingzi Zhang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Xiangshu Jin
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Minlan Yang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Yan Lu
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Peiye Song
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Shuai Zhao
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Bing Dong
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Yinping Xie
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Qihua Dang
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
| | - Chengshi Quan
- The Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130000, P.R. China
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11
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Raj MT, Boughner JC. Detangling the evolutionary developmental integration of dentate jaws: evidence that a p63 gene network regulates odontogenesis exclusive of mandible morphogenesis. Evol Dev 2017; 18:317-323. [PMID: 27870215 DOI: 10.1111/ede.12208] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Vertebrate jaws and dentitions fit and function together, yet the genetic processes that coordinate cranial and dental morphogenesis and evolution remain poorly understood. Teeth but not jaws fail to form in the edentate p63-/- mouse mutant, which we used here to identify genes important to odontogenesis, but not jaw morphogenesis, and that may allow dentitions to change during development and evolution without necessarily affecting the jaw skeleton. With the working hypothesis that tooth and jaw development are autonomously controlled by discreet gene regulatory networks, using gene expression microarray assays validated by quantitative reverse-transcription PCR we contrasted expression in mandibular prominences at embryonic days (E) 10-13 of mice with normal lower jaw development but either normal (p63+/- , p63+/+ ) or arrested (p63-/- ) tooth development. The p63-/- mice showed significantly different expression (fold change ≥2, ≤-2; P ≤ 0.05) of several genes. Some of these are known to help regulate odontogenesis (e.g., p63, Osr2, Cldn3/4) and/or to be targets of p63 (e.g., Jag1/2, Fgfr2); other genes have no previously reported roles in odontogenesis or the p63 pathway (e.g., Fermt1, Cbln1, Pltp, Krt8). As expected, from E10 to E13, few genes known to regulate mandible morphogenesis differed in expression between mouse strains. This study newly links several genes to odontogenesis and/or to the p63 signaling network. We propose that these genes act in a novel odontogenic network that is exclusive of lower jaw morphogenesis, and posit that this network evolved in oral, not pharyngeal, teeth.
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Affiliation(s)
- Muhammad T Raj
- Department of Anatomy and Cell Biology, University of Saskatchewan, Health Sciences Building, 3B38-107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Julia C Boughner
- Department of Anatomy and Cell Biology, University of Saskatchewan, Health Sciences Building, 3B38-107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
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12
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Bardet C, Ribes S, Wu Y, Diallo MT, Salmon B, Breiderhoff T, Houillier P, Müller D, Chaussain C. Claudin Loss-of-Function Disrupts Tight Junctions and Impairs Amelogenesis. Front Physiol 2017; 8:326. [PMID: 28596736 PMCID: PMC5442167 DOI: 10.3389/fphys.2017.00326] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/05/2017] [Indexed: 01/06/2023] Open
Abstract
Claudins are a family of proteins that forms paracellular barriers and pores determining tight junctions (TJ) permeability. Claudin-16 and -19 are pore forming TJ proteins allowing calcium and magnesium reabsorption in the thick ascending limb of Henle's loop (TAL). Loss-of-function mutations in the encoding genes, initially identified to cause Familial Hypomagnesemia with Hypercalciuria and Nephrocalcinosis (FHHNC), were recently shown to be also involved in Amelogenesis Imperfecta (AI). In addition, both claudins were expressed in the murine tooth germ and Claudin-16 knockout (KO) mice displayed abnormal enamel formation. Claudin-3, an ubiquitous claudin expressed in epithelia including kidney, acts as a barrier-forming tight junction protein. We determined that, similarly to claudin-16 and claudin-19, claudin-3 was expressed in the tooth germ, more precisely in the TJ located at the apical end of secretory ameloblasts. The observation of Claudin-3 KO teeth revealed enamel defects associated to impaired TJ structure at the secretory ends of ameloblasts and accumulation of matrix proteins in the forming enamel. Thus, claudin-3 protein loss-of-function disturbs amelogenesis similarly to claudin-16 loss-of-function, highlighting the importance of claudin proteins for the TJ structure. These findings unravel that loss-of-function of either pore or barrier-forming TJ proteins leads to enamel defects. Hence, the major structural function of claudin proteins appears essential for amelogenesis.
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Affiliation(s)
- Claire Bardet
- Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, Paris Descartes University, Sorbonne Paris CitéParis, France
| | - Sandy Ribes
- Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, Paris Descartes University, Sorbonne Paris CitéParis, France
| | - Yong Wu
- Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, Paris Descartes University, Sorbonne Paris CitéParis, France.,Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Mamadou Tidiane Diallo
- Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, Paris Descartes University, Sorbonne Paris CitéParis, France
| | - Benjamin Salmon
- Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, Paris Descartes University, Sorbonne Paris CitéParis, France.,Department of Odontology, AP-HP, and Reference Center for Rare Dieases of the Metabolism of Calcium and Phosphorus, Nord Val de Seine Hospital (Bretonneau)Paris, France
| | - Tilman Breiderhoff
- Department of Pediatric Nephrology, Charité University School of MedicineBerlin, Germany
| | - Pascal Houillier
- Cordeliers Research Center, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale UMRS 1138, Paris-Diderot, Pierre et Marie Curie and Paris Descartes Universities, ERLParis, France
| | - Dominik Müller
- Department of Pediatric Nephrology, Charité University School of MedicineBerlin, Germany
| | - Catherine Chaussain
- Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, Paris Descartes University, Sorbonne Paris CitéParis, France.,Department of Odontology, AP-HP, and Reference Center for Rare Dieases of the Metabolism of Calcium and Phosphorus, Nord Val de Seine Hospital (Bretonneau)Paris, France
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13
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Yamaguti PM, Neves FDAR, Hotton D, Bardet C, de La Dure-Molla M, Castro LC, Scher MDC, Barbosa ME, Ditsch C, Fricain JC, de La Faille R, Figueres ML, Vargas-Poussou R, Houillier P, Chaussain C, Babajko S, Berdal A, Acevedo AC. Amelogenesis imperfecta in familial hypomagnesaemia and hypercalciuria with nephrocalcinosis caused by CLDN19 gene mutations. J Med Genet 2016; 54:26-37. [PMID: 27530400 DOI: 10.1136/jmedgenet-2016-103956] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/15/2016] [Accepted: 07/27/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND Amelogenesis imperfecta (AI) is a group of genetic diseases characterised by tooth enamel defects. AI was recently described in patients with familial hypercalciuria and hypomagnesaemia with nephrocalcinosis (FHHNC) caused by CLDN16 mutations. In the kidney, claudin-16 interacts with claudin-19 to control the paracellular passage of calcium and magnesium. FHHNC can be linked to mutations in both genes. Claudin-16 was shown to be expressed during amelogenesis; however, no data are available on claudin-19. Moreover, the enamel phenotype of patients with CLDN19 mutations has never been described. In this study, we describe the clinical and genetic features of nine patients with FHHNC carrying CLDN19 mutations and the claudin-19 expression profile in rat ameloblasts. METHODS Six FHHNC Brazilian patients were subjected to mutational analysis. Three additional French patients were recruited for orodental characterisation. The expression profile of claudin-19 was evaluated by RT-qPCR and immunofluorescence using enamel epithelium from rat incisors. RESULTS All patients presented AI at different degrees of severity. Two new likely pathogenic variations in CLDN19 were found: p.Arg200Gln and p.Leu90Arg. RT-qPCR revealed low Cldn19 expression in ameloblasts. Confocal analysis indicated that claudin-19 was immunolocalised at the distal poles of secretory and maturing ameloblasts. CONCLUSIONS For the first time, it was demonstrated that AI is associated with FHHNC in patients carrying CLDN19 mutations. The data suggest claudin-19 as an additional determinant in enamel formation. Indeed, the coexistence of hypoplastic and hypomineralised AI in the patients was consistent with claudin-19 expression in both secretory and maturation stages. Additional indirect systemic effects cannot be excluded.
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Affiliation(s)
- Paulo Marcio Yamaguti
- Faculty of Health Sciences, Division of Dentistry, Oral Care Center for Inherited Diseases, University Hospital of Brasilia, University of Brasilia, Brasilia, Brazil.,Faculty of Health Sciences, Laboratory of Oral Histopathology, University of Brasilia, Brasilia, Brazil
| | | | - Dominique Hotton
- Centre de Recherche des Cordeliers, University Paris-Diderot, INSERM UMR_S1138, Equipe Physiopathologie Orale Moléculaire, Paris, France
| | - Claire Bardet
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Muriel de La Dure-Molla
- INSERM UMR_S1163, Bases moléculaires et physiopathologiques des ostéochondrodysplasies, Institut Imagine, Necker, Paris, France.,AP-HP, Referral Center for Rare Buccal and Facial Dysmorphologies CRMR MAFACE, Hôpital Rothschild, Paris, France
| | - Luiz Claudio Castro
- Unit of Pediatric Endocrinology, University Hospital of Brasilia, Brasilia, Brazil
| | | | | | | | - Jean-Christophe Fricain
- CHU Bordeaux, Dental school, U1026 Tissue Bioengineering, University of Bordeaux/Inserm, Bordeaux, France
| | - Renaud de La Faille
- Department of Nephrology, Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Marie-Lucile Figueres
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, Université Paris Descartes, Sorbonne Paris Cité, UMR_S 1138, Centre de Recherche des Cordeliers, CNRS ERL_8228, Paris, France
| | - Rosa Vargas-Poussou
- AP-HP, Department of Genetics, Reference Center of Children and Adult Renal Hereditary Diseases (MARHEA), Hôpital European Georges Pompidou, Paris, France
| | - Pascal Houillier
- Sorbonne Universités, UPMC Univ Paris 06, INSERM, Université Paris Descartes, Sorbonne Paris Cité, UMR_S 1138, Centre de Recherche des Cordeliers, CNRS ERL_8228, Paris, France.,AP-HP, Department of Genetics, Reference Center of Children and Adult Renal Hereditary Diseases (MARHEA), Hôpital European Georges Pompidou, Paris, France
| | - Catherine Chaussain
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School, University Paris Descartes, Sorbonne Paris Cité, Paris, France.,AP-HP, Department of Genetics, Reference Center of Children and Adult Renal Hereditary Diseases (MARHEA), Hôpital European Georges Pompidou, Paris, France
| | - Sylvie Babajko
- Centre de Recherche des Cordeliers, University Paris-Diderot, INSERM UMR_S1138, Equipe Physiopathologie Orale Moléculaire, Paris, France
| | - Ariane Berdal
- Centre de Recherche des Cordeliers, University Paris-Diderot, INSERM UMR_S1138, Equipe Physiopathologie Orale Moléculaire, Paris, France.,AP-HP, Referral Center for Rare Buccal and Facial Dysmorphologies CRMR MAFACE, Hôpital Rothschild, Paris, France
| | - Ana Carolina Acevedo
- Faculty of Health Sciences, Division of Dentistry, Oral Care Center for Inherited Diseases, University Hospital of Brasilia, University of Brasilia, Brasilia, Brazil.,Faculty of Health Sciences, Laboratory of Oral Histopathology, University of Brasilia, Brasilia, Brazil
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14
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Bardet C, Courson F, Wu Y, Khaddam M, Salmon B, Ribes S, Thumfart J, Yamaguti PM, Rochefort GY, Figueres ML, Breiderhoff T, Garcia-Castaño A, Vallée B, Le Denmat D, Baroukh B, Guilbert T, Schmitt A, Massé JM, Bazin D, Lorenz G, Morawietz M, Hou J, Carvalho-Lobato P, Manzanares MC, Fricain JC, Talmud D, Demontis R, Neves F, Zenaty D, Berdal A, Kiesow A, Petzold M, Menashi S, Linglart A, Acevedo AC, Vargas-Poussou R, Müller D, Houillier P, Chaussain C. Claudin-16 Deficiency Impairs Tight Junction Function in Ameloblasts, Leading to Abnormal Enamel Formation. J Bone Miner Res 2016; 31:498-513. [PMID: 26426912 DOI: 10.1002/jbmr.2726] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 12/26/2022]
Abstract
Claudin-16 protein (CLDN16) is a component of tight junctions (TJ) with a restrictive distribution so far demonstrated mainly in the kidney. Here, we demonstrate the expression of CLDN16 also in the tooth germ and show that claudin-16 gene (CLDN16) mutations result in amelogenesis imperfecta (AI) in the 5 studied patients with familial hypomagnesemia with hypercalciuria and nephrocalcinosis (FHHNC). To investigate the role of CLDN16 in tooth formation, we studied a murine model of FHHNC and showed that CLDN16 deficiency led to altered secretory ameloblast TJ structure, lowering of extracellular pH in the forming enamel matrix, and abnormal enamel matrix protein processing, resulting in an enamel phenotype closely resembling human AI. This study unravels an association of FHHNC owing to CLDN16 mutations with AI, which is directly related to the loss of function of CLDN16 during amelogenesis. Overall, this study indicates for the first time the importance of a TJ protein in tooth formation and underlines the need to establish a specific dental follow-up for these patients.
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Affiliation(s)
- Claire Bardet
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France
| | - Frédéric Courson
- Department of Odontology, AP-HP, and Reference Center for Rare Diseases of the Metabolism of Calcium and Phosphorus, Nord Val de Seine Hospital, Bretonneau, France
| | - Yong Wu
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France.,Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Mayssam Khaddam
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France
| | - Benjamin Salmon
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France.,Department of Odontology, AP-HP, and Reference Center for Rare Diseases of the Metabolism of Calcium and Phosphorus, Nord Val de Seine Hospital, Bretonneau, France
| | - Sandy Ribes
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France
| | - Julia Thumfart
- Department of Pediatric Nephrology, Charité University School of Medicine, Berlin, Germany
| | - Paulo M Yamaguti
- Division of Dentistry, Oral Care Center for Inherited Diseases, University Hospital of Brasilia, Faculty of Health Sciences, University of Brasilia (UnB), Brasilia, Brazil
| | - Gael Y Rochefort
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France
| | - Marie-Lucile Figueres
- INSERM UMRS 1138, Cordeliers Research Center, Paris-Diderot, Pierre et Marie Curie and Paris Descartes Universities, CNRS ERL 8228, Paris, France
| | - Tilman Breiderhoff
- Department of Pediatric Nephrology, Charité University School of Medicine, Berlin, Germany
| | - Alejandro Garcia-Castaño
- Department of Genetics, AP-HP, and Reference Center of Children and Adult Renal Hereditary Diseases (MARHEA), European Hospital Georges Pompidou, Paris, France
| | - Benoit Vallée
- Laboratory CRRET, Paris-Est University, CNRS, Créteil, France
| | - Dominique Le Denmat
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France
| | - Brigitte Baroukh
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France
| | - Thomas Guilbert
- Cochin Institute, Plate-Forme d'Imagerie Photonique, INSERM U1016, CNRS UMR8104, Paris Descartes University Sorbonne Paris Cité, Paris, France
| | - Alain Schmitt
- Cochin Institute, Transmission Electron Microscopy Platform, INSERM U1016, CNRS UMR8104, Paris Descartes University Sorbonne Paris Cité, Paris, France
| | - Jean-Marc Massé
- Cochin Institute, Transmission Electron Microscopy Platform, INSERM U1016, CNRS UMR8104, Paris Descartes University Sorbonne Paris Cité, Paris, France
| | - Dominique Bazin
- Laboratoire de Physique des Solides, CNRS, Paris Sud University, Orsay, and LCMCP-UPMC, Collège de France, Paris, France
| | - Georg Lorenz
- Fraunhofer Institute for Mechanics of Materials IWM, Halle, Germany
| | - Maria Morawietz
- Fraunhofer Institute for Mechanics of Materials IWM, Halle, Germany
| | - Jianghui Hou
- Division of Renal Diseases, Washington University School of Medicine, St. Louis, MO, USA
| | - Patricia Carvalho-Lobato
- Human Anatomy and Embryology, Health University of Barcelona Campus-Bellvitge, University of Barcelona, Barcelona, Spain
| | - Maria Cristina Manzanares
- Human Anatomy and Embryology, Health University of Barcelona Campus-Bellvitge, University of Barcelona, Barcelona, Spain
| | - Jean-Christophe Fricain
- CHU Bordeaux, Dental School, U1026 Tissue Bioengineering, University of Bordeaux/Inserm, Bordeaux, France
| | - Deborah Talmud
- Department of Pediatrics, Centre Hospitalier Régional (CHR) d'Orléans, Orleans, France
| | | | - Francisco Neves
- Laboratory of Molecular Pharmacology, Faculty of Health Sciences, University of Brasilia (UNB), Brasilia, Brazil
| | - Delphine Zenaty
- Department of Pediatric Endocrinology, AP-HP, Paris Diderot University, Robert Debré Hospital, Paris, France
| | - Ariane Berdal
- INSERM UMRS 1138, Cordeliers Research Center, Paris-Diderot, Pierre et Marie Curie and Paris Descartes Universities, CNRS ERL 8228, Paris, France
| | - Andreas Kiesow
- Fraunhofer Institute for Mechanics of Materials IWM, Halle, Germany
| | - Matthias Petzold
- Fraunhofer Institute for Mechanics of Materials IWM, Halle, Germany
| | - Suzanne Menashi
- Laboratory CRRET, Paris-Est University, CNRS, Créteil, France
| | - Agnes Linglart
- Department of Pediatric Endocrinology, AP-HP, Paris Sud University, School of Medicine, and Reference Center for Rare Diseases of the Metabolism of Calcium and Phosphorus, Paris, France
| | - Ana Carolina Acevedo
- Division of Dentistry, Oral Care Center for Inherited Diseases, University Hospital of Brasilia, Faculty of Health Sciences, University of Brasilia (UnB), Brasilia, Brazil
| | - Rosa Vargas-Poussou
- Department of Genetics, AP-HP, and Reference Center of Children and Adult Renal Hereditary Diseases (MARHEA), European Hospital Georges Pompidou, Paris, France
| | - Dominik Müller
- Department of Pediatric Nephrology, Charité University School of Medicine, Berlin, Germany
| | - Pascal Houillier
- INSERM UMRS 1138, Cordeliers Research Center, Paris-Diderot, Pierre et Marie Curie and Paris Descartes Universities, CNRS ERL 8228, Paris, France.,Department of Physiology, AP-HP, and Reference Center of Children and Adult Renal Hereditary Diseases (MARHEA), Georges Pompidou European Hospital, Paris, France
| | - Catherine Chaussain
- EA 2496, Laboratory Orofacial Pathologies, Imaging and Biotherapies, Dental School Paris Descartes University, Sorbonne Paris Cité, France.,Department of Odontology, AP-HP, and Reference Center for Rare Diseases of the Metabolism of Calcium and Phosphorus, Nord Val de Seine Hospital, Bretonneau, France
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15
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Jussila M, Aalto AJ, Sanz Navarro M, Shirokova V, Balic A, Kallonen A, Ohyama T, Groves AK, Mikkola ML, Thesleff I. Suppression of epithelial differentiation by Foxi3 is essential for molar crown patterning. Development 2015; 142:3954-63. [PMID: 26450968 DOI: 10.1242/dev.124172] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 09/27/2015] [Indexed: 12/27/2022]
Abstract
Epithelial morphogenesis generates the shape of the tooth crown. This is driven by patterned differentiation of cells into enamel knots, root-forming cervical loops and enamel-forming ameloblasts. Enamel knots are signaling centers that define the positions of cusp tips in a tooth by instructing the adjacent epithelium to fold and proliferate. Here, we show that the forkhead-box transcription factor Foxi3 inhibits formation of enamel knots and cervical loops and thus the differentiation of dental epithelium in mice. Conditional deletion of Foxi3 (Foxi3 cKO) led to fusion of molars with abnormally patterned shallow cusps. Foxi3 was expressed in the epithelium, and its expression was reduced in the enamel knots and cervical loops and in ameloblasts. Bmp4, a known inducer of enamel knots and dental epithelial differentiation, downregulated Foxi3 in wild-type teeth. Using genome-wide gene expression profiling, we showed that in Foxi3 cKO there was an early upregulation of differentiation markers, such as p21, Fgf15 and Sfrp5. Different signaling pathway components that are normally restricted to the enamel knots were expanded in the epithelium, and Sostdc1, a marker of the intercuspal epithelium, was missing. These findings indicated that the activator-inhibitor balance regulating cusp patterning was disrupted in Foxi3 cKO. In addition, early molar bud morphogenesis and, in particular, formation of the suprabasal epithelial cell layer were impaired. We identified keratin 10 as a marker of suprabasal epithelial cells in teeth. Our results suggest that Foxi3 maintains dental epithelial cells in an undifferentiated state and thereby regulates multiple stages of tooth morphogenesis.
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Affiliation(s)
- Maria Jussila
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
| | - Anne J Aalto
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
| | - Maria Sanz Navarro
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
| | - Vera Shirokova
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
| | - Anamaria Balic
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
| | - Aki Kallonen
- Division of Materials Physics, Department of Physics, University of Helsinki, PO Box 64, Helsinki 00014, Finland
| | - Takahiro Ohyama
- Department of Otolaryngology, Head & Neck Surgery and Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, 1501 San Pablo Street, Los Angeles, CA 90033-4503, USA
| | - Andrew K Groves
- Program in Developmental Biology, Department of Molecular and Human Genetics and Department of Neuroscience, Baylor College of Medicine, BCM295, 1 Baylor Plaza, Houston, TX 77030, USA
| | - Marja L Mikkola
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
| | - Irma Thesleff
- Research Program in Developmental Biology, Institute of Biotechnology, University of Helsinki, Biocenter 1, PO Box 56, Helsinki 00014, Finland
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16
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Lesot H, Hovorakova M, Peterka M, Peterkova R. Three-dimensional analysis of molar development in the mouse from the cap to bell stage. Aust Dent J 2014; 59 Suppl 1:81-100. [DOI: 10.1111/adj.12132] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- H Lesot
- Institut National de la Santé et de la Recherche Médicale; UMR 1109, Team ‘Osteoarticular and Dental Regenerative NanoMedicine’; Strasbourg France
- Université de Strasbourg; Faculté de Chirurgie Dentaire; Strasbourg France
| | - M Hovorakova
- Department of Teratology; Institute of Experimental Medicine, Academy of Sciences of the Czech Republic; Prague Czech Republic
| | - M Peterka
- Department of Teratology; Institute of Experimental Medicine, Academy of Sciences of the Czech Republic; Prague Czech Republic
| | - R Peterkova
- Department of Teratology; Institute of Experimental Medicine, Academy of Sciences of the Czech Republic; Prague Czech Republic
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17
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Bartlett JD, Smith CE. Modulation of cell-cell junctional complexes by matrix metalloproteinases. J Dent Res 2012; 92:10-7. [PMID: 23053846 DOI: 10.1177/0022034512463397] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The ameloblast cell layer of the enamel organ is in contact with the forming enamel as it develops into the hardest substance in the body. Ameloblasts move in groups that slide by one another as the enamel layer thickens. Each ameloblast is responsible for the formation of one enamel rod, and the rods are the mineralized trail that moving ameloblasts leave behind. Matrix metalloproteinases (MMPs) facilitate cell movement in various tissues during development, and in this review we suggest that the tooth-specific MMP, enamelysin (MMP20), facilitates ameloblast movements during enamel development. Mmp20 null mice have thin brittle enamel with disrupted rod patterns that easily abrades from the underlying dentin. Strikingly, the Mmp20 null mouse enamel organ morphology is noticeably dysplastic during late-stage development, when MMP20 is no longer expressed. We suggest that in addition to its role of cleaving enamel matrix proteins, MMP20 also cleaves junctional complexes present on ameloblasts to foster the cell movement necessary for formation of the decussating enamel rod pattern. Therefore, inactivation of MMP20 would result in tight ameloblast cell-cell attachments that may cause maturation-stage enamel organ dysplasia. The tight ameloblast attachments would also preclude the ameloblast movement necessary to form decussating enamel rod patterns.
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Affiliation(s)
- J D Bartlett
- Department of Mineralized Tissue Biology, Forsyth Institute, Harvard School of Dental Medicine, Cambridge, MA, USA.
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18
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Nishikawa S, Abe M. Immunocytochemical localization of claudin-1 in the maturation ameloblasts of rat incisors. Front Physiol 2010; 1:150. [PMID: 21423390 PMCID: PMC3059967 DOI: 10.3389/fphys.2010.00150] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 10/26/2010] [Indexed: 12/26/2022] Open
Abstract
Claudin-1 is a tight junction transmembrane protein. Its localization in the maturation ameloblasts of rat incisors was examined by immunofluorescence microscopy. Distal junction area of ruffle-ended ameloblasts (RA) and the Golgi apparatus of a sub-population of smooth-ended ameloblasts (SA) and RAs stained positive with anti-claudin-1 antibodies. Since it has been shown that ameloblasts repeatedly alternate between an SA and an RA morphology during enamel maturation, the presence of claudin-1 in the Golgi cisterns may indicate the presence of tight junction precursors before transportation to the junctional area.
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Affiliation(s)
- Sumio Nishikawa
- Department of Biology, Tsurumi University School of Dental Medicine Yokohama, Kanagawa, Japan.
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19
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Gupta IR, Ryan AK. Claudins: unlocking the code to tight junction function during embryogenesis and in disease. Clin Genet 2010; 77:314-25. [PMID: 20447145 DOI: 10.1111/j.1399-0004.2010.01397.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Claudins are the structural and molecular building blocks of tight junctions. Individual cells express more than one claudin family member, which suggests that a combinatorial claudin code that imparts flexibility and dynamic regulation of tight junction function could exist. Although we have learned much from manipulating claudin expression and function in cell lines, loss-of-function and gain-of-function experiments in animal model systems are essential for understanding how claudin-based boundaries function in the context of a living embryo and/or tissue. These in vivo manipulations have pointed to roles for claudins in maintaining the epithelial integrity of cell layers, establishing micro-environments and contributing to the overall shape of an embryo or tissue. In addition, loss-of-function mutations in combination with the characterization of mutations in human disease have demonstrated the importance of claudins in regulating paracellular transport of solutes and water during normal physiological states. In this review, we will discuss specific examples of in vivo studies that illustrate the function of claudin family members during development and in disease.
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Affiliation(s)
- I R Gupta
- Department of Pediatrics, McGill University, Montréal, Québec, Canada
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20
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Hata M, Kawamoto T, Kawai M, Yamamoto T. Differential expression patterns of the tight junction-associated proteins occludin and claudins in secretory and mature ameloblasts in mouse incisor. Med Mol Morphol 2010; 43:102-6. [PMID: 20683698 DOI: 10.1007/s00795-009-0482-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Accepted: 10/28/2009] [Indexed: 10/19/2022]
Abstract
Tight junctions (TJs) function primarily as a barrier against paracellular transport between epithelial cells and are composed mainly of occludin (OLD) and claudins (CLDs). The CLD family consists of 24 members that show tissue- or cell-specific expression. Ameloblasts, which originate from the oral epithelium, form enamel, and enamel proteins and minerals are transported across the ameloblastic layer during amelogenesis. We immunohistochemically examined the distribution patterns of TJs in ameloblasts by observing the expression patterns of OLD and CLDs (CLD-1 to CLD-10). Secretory ameloblasts contained OLD and CLD-1, -8, and -9 at the distal end of the cell. In mature ameloblasts, OLD and CLD-1, -6, -7, -8, -9, and -10 were present mainly at both the distal and proximal ends of the cell, regardless of whether the ameloblasts were ruffle-ended or smooth-ended. Mature ameloblasts in which only the proximal ends were stained for OLD and CLDs were also found. These results indicate that the expression patterns of CLDs and the distribution patterns of TJs change drastically between the secretory and mature ameloblast stages, suggesting that these patterns reflect the different functions of these cells, specifically in the transport of proteins and ions for enamel formation.
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Affiliation(s)
- Masaki Hata
- Department of Oral Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama, 700-8525, Japan
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21
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Inai T, Sengoku A, Hirose E, Iida H, Shibata Y. Differential expression of the tight junction proteins, claudin-1, claudin-4, occludin, ZO-1, and PAR3, in the ameloblasts of rat upper incisors. Anat Rec (Hoboken) 2008; 291:577-85. [PMID: 18384062 DOI: 10.1002/ar.20683] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Tight junctions (TJs) create a paracellular permeability barrier to restrict the passage of ions, small solutes, and water. Ameloblasts are enamel-forming cells that sequentially differentiate into preameloblasts, secretory, transition, and ruffle-ended and smooth-ended maturation ameloblasts (RAs and SAs). TJs are located at the proximal and distal ends of ameloblasts. TJs at the distal ends of secretory ameloblasts and RAs are well-developed zonula occludens, but other TJs are moderately developed but incomplete zonula occludens (ZO) or less-developed macula occludens. We herein examined the immunofluorescence localization of TJ proteins, 10 claudin isoforms, occludin, ZO-1, and PAR3, a cell polarity-related protein, in ameloblasts of rat upper incisors. ZO-1 and claudin-1 were detected at both ends of all ameloblasts except for the distal ends of SAs. Claudin-4 and occludin were detected at both ends of transition and maturation ameloblasts except for the distal ends of SAs. PAR3 was detected at the proximal TJs of all ameloblasts and faintly at the distal TJs of early RAs. These results indicate that functional zonula occludens formed at the distal ends of the secretory ameloblasts and RAs consisted of different TJ proteins. Therefore, the distal TJs of secretory ameloblasts and RAs may differentially regulate the paracellular permeability to create a microenvironment suitable for enamel deposition and enamel maturation, respectively. In addition, PAR3 may be principally involved in the formation and maintenance of the proximal, but not distal, TJs.
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Affiliation(s)
- Tetsuichiro Inai
- Department of Developmental Molecular Anatomy, Graduate School of Medical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan.
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